Mertz is a distant, alien world populated by super powered humans instead of anthropomorphic animals . On Mertz, everyone possess incredible powers, except for Ordinary Guy. Comet Guy hails from Mertz.
History[]
Possibly before the series takes place, Ordinary Guy was protected by the superheroes of Mertz. In Smarter Than a Speeding Bullet, Comet Guy travels to Earth (which he has mistaken for the planet Flug) to become a champion. In Planet of the Capes, we are fully introduced to Mertz. We learn everyone on this planet is a human and has super powers, with the exception of Ordinary Guy. Ordinary Guy was temporarily replaced by Darkwing Duck. Ordinary Guy renamed himself "Extraordinary Guy", as he created a ray gun that can give strength and suck superpowers from superheroes.